I liked the idea of each level unlocking a bit of the story and building up the difficulty from the previous level, but the difference in visual style between the level select and the platformer sections was a bit jarring. I also had a bug once the enemy boxes started appearing where the camera would focus on one of them rather than the box I was controlling. The platforming was also a bit too easy for the levels I could actually play - I think it could have got more difficult more quickly.